Oscar Perez, Oscar Pérez and Óscar Pérez may refer to: Óscar Pérez (footballer, born 1973), Mexican football (soccer) player Óscar Pérez (footballer, born 1981), Spanish football (soccer) player Ó
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a96a274671399b4209c3f272f26625d559b35aa63a9dfe248a36764a09753be. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cfa06ef-8853-4dd0-ad02-aba1a874347b.json and https://artists.proofprofile.net/proofs/artist/8cfa06ef-8853-4dd0-ad02-aba1a874347b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8576feebb572e872bf08c125d1461fc46fce34a760823a0bf0335e56f17f4653. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21447501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bebde450d8ab83fa33de4bd561c1e90d5a01f0bebd7cc05f5e11bb3879794dd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21447503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7061e38339b7fcda428c6f726f6b38e9be2d06c10d7fc2bcf73446b7e8b085e. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:25:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21461287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29be3c5eaddaa5319b0f56c5f6eb380fef5fbc633bf47b76108a158e86835f75. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21461289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47024f13169c96316eb87c95b902598072409b079d6efd4f49e70899c7ea0379. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21461290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cc0f332e0211ca39b34d834a90fb896ae055ed3a37c62edb15304b38a6bc6a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21461291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4aba308cb02396fa8da0702402efa3bd4e399bbfe3351301a2931c04f9bbf1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21461292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e39be324d194d72bba5d73e4153f33b1511ded48690407f583bdd414cd4f45e. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:04:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21461293.